Anesthetic for wisdom teeth removal? is it necessary?

Absolutely, Yes!: You absolutely cannot tolerate wisdom tooth extractions without local anesthetic. However, what i think you are referring to is "general" anesthesia or sedation...Putting you to sleep or into a "twilight" state so you're not aware of what's happening. That part is often optional, depending on the specifics of the case. So, anesthetic is mandatory, but anesthesia is something you need to discuss.

Yes : Anesthesia is normal and most needed for an extraction. You have a choice- either with local anesthesia- novacaine injection, or general anesthesia- being knocked out. Either way you need to have some anesthesia to block the pain receptors.

Local anesthetic: Local anesthetic is always necessary. Even if you are completely sedated, local anesthetic must be used or else your body (even though you are not conscious) will respond negatively to the pain with increased heart rate and blood pressure. This could cause significant problems if you have underlying health issues such as heart problems. Local anesthetic is a must and its safe, so use it

Always necessary: Three options: 1. Local anesthesia. 2. Sedation anesthesia. 3. General anesthesia